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Thanks to a history of competition successes, particularly in off-road racing, KTM motorcycles enjoy a large and loyal following. Established in 1953, KTM (from Kraftfahrzeuge Trunkenpolz Mattighofen where founder, Hans Trunkenpolz, had his engineering works) went through difficult times in the early 1990s. After a takeover, the Austrian company emerged as KTM Sportmotorcycle AG and has gone from strength to strength in recent years. Mainstay of their range are their Enduro and Motocross models, the EXC and SX, and these are covered in the latest new manual from Haynes. Models covered are the 250, 400, 450, 520 and 525 EXC and SX with 4-stroke sohc engines, 2000 to 2007. Information has also been included on the SMR Supermoto versions and MXC/XC derivatives. Haynes Manuals for cars and motorcycles are so popular that 150 million have been sold worldwide. Lay them end-to-end and they would circle the globe at the equator! The new manual begins with essential pre-ride checks, competition prep and routine maintenance tasks before moving on to more major repairs. There are comprehensive, fully illustrated, instructions for overhauling the engine, transmission, brakes, suspension and electrical system. Useful reference pages include colour wiring diagrams, fault-finding charts and a comprehensive section on tools and workshop tips. Because all Haynes Manuals are based on a complete stripdown and rebuild, not only are the procedures written from first-hand experience, but there is information about special tools required for each job, and its complexity, plus Haynes tips for saving time and money. The new Haynes KTM EXC Enduro & SX Motocross Manual is the only complete manual for owners of these motorcycles.

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Adjustments -Take notice of the position of the compression adjustment 1 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -Remove the rubber cap out of the axleclamp. -Take notice of the position of the rebound adjustment 2 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -For the standard position see setting list. Position of the compression and rebound adjustment -Set the rebound position 1 , see KTM-Owners manual. -Assemble the rubber cap. -Set the compression position 2 , see KTM-Owners manual. 1 2 2-22 Repair manual WP Fork “Closed Cartridge” Art.No.: 3.211.199-E Explanation of the spring preload -Total spring length without the spacers, see chapter inspection of the spring! -Spring length with spacers 1 , see setting list. -Spring with the spacers. 1 . -The spring is assembled in the front fork leg. NOTE: the distance of “B” is less then the length of “A”. A – B = Spring preload A 1 1 B 2-23 Air release screw -Place the motorcycle on the stand. NOTE: the front wheel must be lift of the floor! -Unscrew the air release screw 1 of the screw cap on top of the front fork and tighten after approx. 10 seconds the air release screw. Recommended periodic maintenance and inspection of the 4860 SX/SXS/SMR front fork 1 A 100 liter fuel consumption is equivalent to approx. 15 operating hours Clean dust scrapers (after 1 hour) Bleed fork legs regularly – after every cleaning Check the inner tubes on scratches / leakage Visual check of damaging of the outer-tubes / replace if necessary Complete service without disass. the closed cartridge of the fork Complete service including the closed cartridge of the front fork Dismounting the fork -Place your motorcycle on a stand. -Notice the position of the front fork in the triple-clamps. NOTE: To remove the front fork. Read your KTM Instruction Manual or Workshop Manual. 3-3 Mounting the fork -Clean the innerside of the triple-clamps with brake cleaner. -Slide both fork legs into the triple-clamps. NOTE: Pay attention to the position of the fork legs. Standard riding height! NOTE: The maximum riding height is the level of the second groove! -Tighten the middle bolt of the lower triple clamp to a torque of 17 Nm! -Tighten the first bolt of the lower triple clamp to a torque of 17 Nm! -Tighten the third bolt of the lower triple clamp to a torque of 17 Nm!

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Engine ] Pure power for Enduro enthusiasts. The power of the 525 XC is the indisputable benchmark in the ATV Enduro sector. Its acceleration and top speed cast a shadow over all its predecessors. Variable ignition curves and perfect maintenance features like simple valve play adjustment and the removable clutch cover are even further highlights of the XC engine that make the KTM Enduro quads so superior. First Oil Filling for all KTM Engines. [ CarburEttor ] The Keihin carburettor, which has been proven multiple times in racing, with 39 mm and the Throttle Positioning System guarantees a uniform, forceful power delivery in all speed ranges. It ensures an unrivalled response behavior and perfect service-friendliness at all times. [ StartEr ] Packed in a space-saving manner into the free space behind the cylinder head, the small, light electric starter motor is ready for use. It brings every KTM ATV up to speed reliably and comfortably even when racing becomes hectic. [ rEar SuSPENSIoN ] Premium-quality ÖHLINS suspension components specially designed for tough Enduro use are provided as standard – both at the front and the rear. Easy to adjust, they guarantee optimal tuning for the most varied of terrains. Another highlight: the front and rear spring travel of 275 mm and 272 mm respectively is 100 % trend-setting for an Enduro ATV! [ alumINIum SubFramE ] The rear subframe is made of aluminium and is extremely light and easy to remove. [ FramE ] The lightweight, extremely durable frame sets the benchmark in the quad racing segment and is made of high-strength, powder-coated Chromoly steel. [ haNDlEbar ] An ultra-durable tapered aluminium Magura® handlebar comes standard that is four-position adjustable to suit your preferred ergonomics. Further highlights are the functional and individually adjustable operating levers for brake and hydraulic clutch. In addition, the chassis has an integrated mount for a steering damper – available as a PowerPart accessory. [ CurvED raDIator ] Best cooling by means of its curved shape and the resulting maximized surface area. [ rImS / tIrES ] MAXXIS Razr tyres on light, stable DWT aluminium rims. [ ExhauSt ] The powerful XC silencer is made of light-weight aluminium.

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00-’03 KTM 400/450/520/525 EXC & MXC Dual Sport Kit Installation Manual 1. Get a degree in Mechanical and Electrical Engineering. (Just kidding!) 2. Remove the seat, fuel tank, and side panels. Stock switch Bracket Photo 2 EXC – Unplug and remove the stock headlight. (Photo 2.) Unplug the stock three-pin taillight connector and pull the taillight wires back to the rear of the airbox temporarily. MXC – Remove the stock front number plate. 3. Make sure the stock battery is oriented in its mounting bracket as shown with the positive terminal on the left side of the bike (as viewed if sitting on the bike). If not, remove and spin it 180 degrees. Photo 3
4. MXC ONLY! (EXC skip this step.) Locate the stock lighting wiring harness zip-tied under the frame back-bone (See Photo 4). Remove the securing zip-ties and route this wiring forward to the area behind the headlight. Route along right side of frame using factory wire- guide clamp. 5. Brake Light Switch Installation: The KTM kit uses a hydraulic brake-switch. This requires replacing the rear master cylinder banjo bolt with a specially made switch. Installing the switch requires bleeding the brake. If you do not feel competent bleeding your rear brake, please refer this job to a qualified mechanic, as failure to do it correctly will make the brake inoperable. Remove the stock banjo bolt and replace with the hydraulic switch as shown. Make sure to install

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Adjustments -Take notice of the position of the compression adjustment 1 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -Remove the rubber cap out of the axleclamp. -Take notice of the position of the rebound adjustment 2 ! -Count the amount of clicks by turning the adjustment screw clockwise till fully closed. -For the standard position see setting list. Position of the compression and rebound adjustment -Set the rebound position 1 , see KTM-Owners manual. -Assemble the rubber cap. -Set the compression position 2 , see KTM-Owners manual. 1 22-22 Repair manual WP Fork “Closed Cartridge” Art.No.: 3.211.199-E Explanation of the spring preload -Total spring length without the spacers, see chapter inspection of the spring! -Spring length with spacers 1 , see setting list. -Spring with the spacers. 1 . -The spring is assembled in the front fork leg. NOTE: the distance of “B” is less then the length of “A”. A – B = Spring preload A 1 1 B2-23 Air release screw -Place the motorcycle on the stand. NOTE: the front wheel must be lift of the floor! -Unscrew the air release screw 1 of the screw cap on top of the front fork and tighten after approx. 10 seconds the air release screw. Recommended periodic maintenance and inspection of the 4860 SX/SXS/SMR front fork 1 A 100 liter fuel consumption is equivalent to approx. 15 operating hours Clean dust scrapers (after 1 hour) Bleed fork legs regularly – after every cleaning Check the inner tubes on scratches / leakage Visual check of damaging of the outer-tubes / replace if necessary Complete service without disass. the closed cartridge of the fork Complete service including the closed cartridge of the front fork

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Remove the valve from the shipping package (box or pallet) with care taken to avoid any damage to the valve and actuator (plus accessories where applicable). •Before installation, remove the seal discs from the flange. Clean the inside of the valve using an air line that includes an appropriate air-filter. Ensure that there are no solid objects such as pieces of wood, plastic or packing materials within the valve or on the valve seat. •Confirm that the materials of construction listed on the valve nameplates are appropriate for the service intended for and are as specified. When in doubt contact KTM, or your local Tyco facility. •Define the preferred mounting orientation with respect to the system pressure. The arrow on the body helps to identify the upstream side (high pressure) and downstream side (low pressure). •Ensure that all stud bolts and nuts of the body joint are firmly fastened. Caution •Verify that the direction of the flow in the line corresponds to the arrow indicated on the valve body. Valves without the arrow are bi-directional. •See the Actuator User Manual for the actuator preparation. 2.2. Installation Instructions •Ball valves are normally installed in horizontal pipes with the stem facing up. However, there are no limitations regarding the pipe or stem orientation. •Unless otherwise recommended by KTM, the valve should be installed with the ball in the open position, to ensure that the seat rings are not damaged during installation. •Particular care should be taken for valves equipped with “fail-close” actuators. •For operating temperatures above 200°C (392°F), thermal insulation of the valve body is recommended to protect the actuator/accessories from heat beyond the recommended temperature range. •Handling and lifting of the valves during installation MUST be performed following the same criteria and instructions described in points 1.2. and 1.3

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Repair manual KTM 250 / 300 / 380 Art No 3206004 -E 2-2C main jet jet needle jet needle air control screw idle adjusting screw idle jet throttle valve Idling range A Operation with closed throttle valve. This range is influenced by the position of the air control screw 1 and the idle adjusting screw 2 . Only make adjustments when the engine is hot. To this end, slightly increase the idling speed of the engine by means of the idle adjusting screw. Turning it clockwise produces a higher idling speed and turning the screw counterclockwise produces a lower idling speed. Create a round and stable engine speed using the air control screw (basic position of the air control screw = open by 1.5 turns). Then adjust to the normal idling speed by means of the idle adjusting screw. Opening up B Engine behavior when the throttle opens. The idle jet and the shape of the throttle valve influences this range. If, despite good idling-speed and part-throttle setting, the engine sputters and smokes when the throttle is fully opened and develops its full power not smoothly but suddenly at high engine speeds, the mixture to the carburetor will be too rich, the fuel level too high or the float needle is leaking. Part-throttle range C Operation with partly open throttle valve. This range is only influenced by the jet needle (shape and position). The optimum part-throttle setting is controlled by the idling setting in the lower range and by the main jet in the upper range. If the engine runs on a four-stroke cycle or with reduced power when it is accelerated with the throttle partly open, the jet needle must be lowered by one notch. If then the engine pings, especially when accelerating under full power at maximum engine revs, the jet needle should be raised. If these faults should occur at the lower end of the part throttle range at a four-stroke running, make the idling range leaner; if the engine pings, adjust the idling range richer. Full throttle range D Operation with the throttle fully open (flat out). This range is influenced by the main jet and the jet needle. If the porcelain of the new spark plug is found to have a very bright or white coating or if the engine rings, after a short distance of riding flat out, a larger main jet is required. If the porcelain is dark brown or black with soot the main jet must be replaced by a smaller one. mixture too rich: too much fuel in proportion to air mixture too lean: not enough fuel in proportion to air 1 2 OPERATING RANGES OF THE CARBURETOR 2-3C Carburetor adjustment Basic information on the original carburetor setting The original carburetor setting was adapted for an altitude of approx. 500 meters (1600 ft.) above sea level, and the ambient temperature of approx. 20°C (68°F), mainly for off-road use and central European premium-grade fuel (ROZ 95 MOZ). Mixing ratio 2-stroke motor oil : super fuel 1:40 – 1:60. Basic information on a change of the carburetor setting Always start out from the original carburetor setting. Essential requirements are a clean air filter system, air-tight exhaust system and an intact carburetor. Experience has shown that adjusting the main jet, the idling jet and the jet needle is sufficient and that changes of other parts of the carburetor will not greatly affect engine performance. RULE OF THUMB:

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TM REPAIR MANUAL IN LOOSE-LEAF FORM STORING THE REPAIR MANUAL IN THE BINDER -Put the index into the binder. -Put the front page of the repair manual (210×297 mm) into the transparent pocket provided for this purpose on the outside of the binder. -Put the spine label (170×45 mm) into the transparent pocket provided for this purpose on the spine of the binder. -Put the summary list of contents (150×297 mm) into the transparent pocket provided for this purpose on the inside of the binder or insert this page on the beginning of the manual. -Then insert the individual chapters of the manual between the sheets of the index according to the page number printed in the right bottom corner of each page. Example: page no. 3-5 3 = chapter 3 5 = page 5 All pages with a page number that begins with the digit 3, for example, must be put under the index heading „Chapter 3″. -Index sheets that have not been marked with a certain chapter are for your personal convenience. T he respective headings can be entered in the list of contents. Remove page (s) Replace by page (s) Insert page (s) after page 2-1 / 2-7 2-1C 2-7C to 2-9C 3-1 3-1C 4-1 to 4-14 4-1C to 4-13C 5-1 / 5-3 5-1C / 5-3C 5-6 to 5-8 5-6C to 5-8C 5-12 to 5-26 5-12C to 5-27C 6-1 / 6-4 6-1C / 6-4C 6-7 to 6-16 6-7C to 6-17C 7-1 to 7-2 7-1C to 7-2C 7-7 to 7-11 7-7C to 7-11C 8-1 to 8-13 8-1C to 8-21C 9-1 9-1C 9-10 to 9-13 9-10C to 9-16C 10-1 10-1C 10-8C to 10-11C 11-1 11-1C 11-11C to 11-13C
Repair manual KTM 250-525 SX, MXC, EXC RACING Art.-No. 3206007 -E EXPLANATION – UPDATING Edition 01/2003 3.205.85-ERepair Manual 400/520 SX, MXC, EXC RACING Basic version Model year 2000 (Engine number with first digit “0″) 2/2000 3.210.01-EUpdating of Rep.Manual 3.205.85-E Model year 2001 (Engine number with first digit “1″) 1/2001 3.210.44-EUpdating of Rep.Manual 3.205.85-E Model year 2002 (Engine number with first digit “2″)

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1 Place motorcycle on a stand so that the rear wheel is off the ground. 2 Remove the upper shock bolt. (Figure 1) 3 Remove the lower shock bolt. (Figure 2) 4 Remove the shock from the motorcycle by sliding it down and out the right rear side of the bike. (Figure 3) 5 Place the shock upside down in a vice with soft jaws. Loosen the retaining ring lock screw with a 4mm Allen wrench. (Figure 4) 6 Using EE KTM shock wrench #22-300 (Figure 5), loosen the retaining collar enough to provide ¾ clearance between the bottom of the spring and the spring retaining collar. (Figure 6) 7 Push the spring retaining collar down to access the retaining clip. (Figure 7) 8 Remove the retaining clip. 9 Remove the spring retaining collar by sliding it up and off of the shock clevis. (Figure 8) 10 Slide the shock spring up and off of the shock. 11 Slide the new spring onto the shock. It should be sitting on the adjusting collar. 12 Re-install the spring retaining collar by sliding it over the clevis far enough to allow the retaining clip to be installed. 13 Install the retaining clip. Make sure that it is fully seated in the groove. 14 Slide the spring retaining collar up until it bottoms out on the retaining clip. 15 Tighten the spring adjusting collar until the bottom of the spring contacts the spring retaining collar. Turn the spring adjusting collar a couple more turns to put a small amount of pre-load on the spring. 16 Remove the shock from the vice and re-install it on the bike by reversing removal steps. Make sure to torque the upper and lower shock bolts to the manufacturer’s torque spec. 17 Set static and race sag as specified in your owner’s manual. Remember to torque the adjusting collar lock screw to manufacturer’s specification